Abstract
In this paper, a switchable and tunable erbium-doped fiber laser (EDFL) using an embedded Lyot filter is tested. The embedded Lyot filter based on a polarization-maintaining fiber (PMF) is theoretically analyzed and experimentally verified. By adjusting three polarization controllers (PCs), the output wavelengths in different wavelength states are emitted. By adjusting PC1, the output wavelengths can be switched among the single-wavelength output state and four different multi-wavelength output states, which are dual-, triple-, quad- and quintuple-wavelength outputs. In addition, the side-mode suppression ratio (SMSR) in this study can be up to ~ 53 dB. By adjusting PC2 and PC3 simultaneously, the output wavelengths show good tunability, and when in triple or quad-wavelength state, the wavelength interval is tunable.
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Data Availability
The datasets generated and analysed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
This work is supported by the National Natural Science Foundation of China (Grant number 61974104), National Youth Natural Science Foundation of China (Grant number 62205245), National Natural Science Foundation of China (Grant number 62003237) and Tianjin Enterprise Technology Commissioner Project (Grant number 20YDTPJC01700).
Funding
Xue Wang, 62205245, Lifang Xue, 61974104, Peng Li, 62003237.
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WZ and ZT guided the experimental research, provided experimental equipment and laboratory, and guided and revised the manuscript. XG mainly conducted experimental research and wrote manuscript text, and processed all experimental data. XW, LX and PL made corrections to the manuscript and provided funds to buy experimental equipment. JZ, QJ and GY assisted in the operation of the experiment.
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Gao, X., Zhang, W., Tong, Z. et al. Switchable and tunable erbium-doped fiber laser with the embedded Lyot filter. Appl. Phys. B 129, 64 (2023). https://doi.org/10.1007/s00340-023-08006-x
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DOI: https://doi.org/10.1007/s00340-023-08006-x